Rotary printing-press.



W. L. HAMILTUN. ROTARY nimma PRESS. APPLICATION FILED FEB. 20, 1911.

2 SHEETS-SHEET 1.

Patented Sept. 19, 1911.

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W. L. HAMILTON. ROTARY PRINTING PRESS. APPLIUATION FILED 111111.20, 1911.

1,003,737. Patented Sept. 19, 1911.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

WILLIAM L. HAMILTON, OF CHICAGD, ILLINOIS.

ROTARY PRINTING-PRESS.

Patented Sept. 19, 191.1. serial No. 609,791.

To all 'whom 'it may concern.'

Be it known that l, WILLIAM L. HAM- nlrN, a citizen of the United States, and resident of Chicago, county of Cook, and State of Illinois, have invented eert'ain`11ew and useful Improvements in Rotary Printk ing-Presses, of which the following is a specification, and which are illustrated in the accom panying thereof.

The invention relates presses; and the object to provide a printing of increased capacity and crativc parts compactly arrange4 The invention contemplates the use of a pair of cylinders cach having printing and impression surfaces of (,lillercnt radius, the printingF and impression surfaces ot' onecylto rotary printing of the invention is shall have its 0pand conveniently Inder c'o('iperatin,. respectively, with the impression and printing surfaces of the other cylinder.

In the. accompanyiug.;r drawings Figure 1 is a central rc1-tical longitudinal section of a printing;` press embodying.r thc invention, the supporting' framework ot the machine being ouiiltcd for simplicity of illustration; Fig. 2 is a sido elevation of the machine, details ot the supporting tranurwohk heiner shown in section liutthe main part of the frame and thel tend tables and inking' rolls heine; omitted; and Finn 3 is a perspective. View showing' a detail of a sheet delivering! mechanism which may be used upon the machine.

ln carrying out the invention. a. pair of oppositely rotating;l cylinders 10, 11, are. 'irovided. These cylinders are mounted on lparallel shafts, as 12, 155, 4and they are most del sirahly of the saine size and of like construction. As shown, each cylinder has a printing surface. as 14, 15, and an impression sorface, as 1G. 17. A set ot ink-distributing rolls, as 25, 2G, cach ot which is supplied by a fountain. as 27, 2S, is provided for elipgagriuer thc printiup' surface ot nach of the cylinders 10. l1. This `init-.distrilmtinc: mechanism muy hc o'l any well known construction, and is herein shown nuicly in outline.. 'l`he two sets ot' 'lult-distrihutinig rolls 25, 26, and the 'fountains 27, 28, for supplyingr the same. are located upon the remote side ot the cylinder. as 10, 11, with which they respect irely cooperate, from the other cylinder.

drawings, fmming a part,

lpress which shall be In order that the impression surfaces, as 16, 17, of the cylinders will not loe directly engaged by the inledistributing rolls, as 25, 26, during the rotation of the cylinders, the two parts of the cylinders are ot' unequal radius, the radii of the printing,r surfaces, ,as 14, 15, of each cylinder Ireerafdy, however, thc two cylindersare of such size that; the sum of the radii of the printingr surface of each cylinder and of the in'lpression surface of the other cylinder is equal to the distance between the axes of the cylinders. The impression surface, as 16, 17, of each cylinder thereby provides a support for a. sheet, while it receives an impression from the printing surface, as 14, 15, of the other cylinder.

To provide for a repeated alternate cooperation of the printingr surface, as 14, 15, of each cylinder with the impression surface, as 16, 17, of the other cylinder, during the continued rotation of the cylinders 10, 11, the linear circumferential extent of the printinofsnrface, as 14, 15, of each cylinder is equal to the extent of the impression surtare. as 16, 17, of the other cylinder Ineasm'ed in the same Way. As the two cylinders 10, 11, are most desirably of like construction, the circumferential extent of the printing' and impression surfaces of each cylinder arc, therefore, preferal'ily equal.

For causing the two cylinders 10, 11, to cooperateV in thel manner just described. whereby two sheets are printed during each revolution of the cylinders, they are simultancously rotated in opposite directions. As shown, the cylinders are geared together by means of intel-meshing cam gears 18 and 19, mounted. reypectively, on the su V)porting shafts 12 and 13. Preferably eac of the cam gears 18, 1,9, comprises two circular portions 20 and 21 (Figr 9), the circular portion 20 being equahi i fannferential extent and of the same radius as the printing surface, as 14, 15, of the corresponding' cylinder, and the circular portion 21 of each of the gears 18, 19, being of the same circumferential extent and ofthe. saine radius as the impression surface, as 1G. 17, of the corre sponding cylinder. ',lhe circular port-ions 20 and 21 of cach of the cam `fears 18, 19, are connected by oblique gear iortions 29 and 23.

During the operation o the machine, one oi the cylinders,- as 10, is contiuuoufly ro tatcd at a uniform speed in the direction i'ndicated by. the arrow on Fig. 1 hy power heine the greater. i

mechanism (not shown). The other cylinder, as 11, is turned in the opposite direction at a variable angular speed, by reason of the inter-meshing of the cam gears 18, 19, tlie circular portions Q0 and 2t ofthe gear 18 engagging, respectively, with the parts 21 and 20 of the gea-r 19.4 t, By constructing the gears in accordance with the proportions here described, the surface speed of the printing' surface 15 of the cylinder 11 is maintained uniform with that of the impression surface 16 of the cylinder 10, while these surfaces are coacting to print a sheet, and the surface speed of the impression surface 17 of* the cylinder 11 is maintained uniform with that of the printing' surface 14 oi. the cylinder 10 when a sheet is beine; printed byV the coaction of the two last-mentioned surfaces. A proper coaetion ot' the cylinders 10, 11, is preferably vfurther insured by equipping each wit-li a. marginal rim or flange 3V, suoli flanges of the tivo cylinders being in continu4 ous rolling contact. These flanges 35 correspond with the bearers usually einployed upon rotary printing presses, except that. in their peripheral outline they follow theirregular contour of the cylinders 10, 11, and of the pitehlines of the cam gears 1,3, 1D, whereby each takes the forni of a cam having circular portions and 35" of unequal diameter connected by oblique portions 35 and 35".

The cylinders 10, 11, Aare each equipped with sheet-gripping fingers 24, which eooperate with theimpression surfaces 16, 17,

of the cylinders for retaining sheets of paper thereon. These sheet-gripping fingers may be of any usual and well known construction. The cylinders 10, l1, will be snpplied with -paper to be printed alternately, and preferably this will be done from separate feed boards, Vas 29, 30. These feed boards arc shown as taking the simplest form of-construction, whereby sheets of 'paper snpportedihereon are delivered to the gripping fingers 24 of the corresponding cylinders 10, 11, 'by hand, though -obvionsly feed boards equipped with any well known form of automatically operated sheet-feeding mechanism may be employed.'

In order that the rfeed boards 29, 30, may readily coperatie 'with the grippers 24 in delivering sheets to the impression surfaces 16,

17, of the cylinders 10,11, respectively, while still permitting the edges of the boards to clear tlie printing surfaces 14, 15, of the cylinders, each of the feed boards is jointed ad jacent its edge, as indicated at 33, and the inner portions, as 31, 32, of the board are vertically oscillated during the rotation of As shown` the oscilliitable V intermediate its ends upon a fixed support the cylinders. inner portion, as 31, 32, of each of-lhc feed boards 29. 30, carries a cam shoe 34, which rides upon the c am bearing surface 35 of the corresponding cylinder'. whereby the inner portions 31, 32, of the feed boards are raised to clear the printing surfaces 14, 15, of the cylinders 10, 11, and. are permitted to fall into close eoiiperative relation with the im, pression surfaces 1G, 17, respectively.

Any convenient 'form of delivery mecha.- nisni may be employed for removing the printed sheets ilfroni the impressidn surfaces 1G, 17, of the cylinders 10, 11. As shown, a pair of delivery rolls 36, 37,and a singleI reciprocating tape carriage 33 are en'iplo'vedj` Unc of the delivery cylinders 3o, Si', cooperates with eachof the cyliri ders 1l), 11, whereby the cylinders 36, 37, deliver sheets to the tape carriage'38 in,- alternation and ad`iicent opposite ends of the carriage. Pregerably each of the delivery cylinders 36, 37, is rotatably `mount` ed nt its ends in links, as` 39, 40, and` gear 'pinions 43, coaxially mounted with each is shown. The links 39, 40, are each pivotally hung from a fixed support, as at. 41, 42, and for swinging the links eachcarries a Iain roller 44, which rides upon oneK of the cani bearing surfaces The delivery cylinders 3G, 37, are equipped with the usual ,clippers 41a. and guide rollers 45 journaled in arnis 46 formed on the links 35), L10, coiiperate with the grippers in holding sheets npcn the cylinders. Prefer ably the guide rollers 45 are continuously driven by gear pinions 4T, coaxially mounted with the guide rollers and meshing with t'litrpinions 43. If desired, a rotatable cutter, 48, for slitting the sheet carried by the corA responding delivery cylinder 36, 37, may` be eoaxially mounted with one or lboth of',`

the guide rollers 115..:`

l stationary rails, as 50, provided at eachsside `As tlietwo of the franie of the machine. sides of the carriage and corresponding parts of the traine of the machine are referably of like construction, one ,side on y of the carriage is shown in detail. l The car-- ringe is preferably.reeiprocated upon the rails, as 5(),`d,uring each revolution of the cylinders 10, 1l. Any convenient mechau `nisiu may be employed for ell'eetingisuch a.'V

reciprocation of the carriage, and there is shown for this purpose a lever 51, pivotcd 52, and having one of its ends connected by a link 53 to a wrist-pin 54, which turns with one of the cylinders, as 10, whereas 30, as at X, will the other end of b he lever l'is connected by a link 55 to the carriage.

The carriage 38 is In'elernbly equipped with two paireI of Superinilumed tape tables, as 56, 57, and 58, 59. The upper and lower tape tables 56, 57, and 58, Mi, of the two pairs are preferably loented in horizontnl alinement on the carriage The inner ends of the upper tape tnhlei; 5G, 5S, :1re eepnruted, as shown at (i0, whereas the lower tape tables 57, 59,.,preferably have their inner end rolls 6], ($2, mounted upon :i common shaft 03. lrovinion in infule 'For driving the tapes ot one of the upper tables; 56, 58, and of the lower table ndjneent the other end of the ezirringe, :iny 59 or 57, during the reciproeation of the enrringg'e in eneh direction, the tapes of the other two tnhlesi then remaining stationary but being; dri-ven during the moven'ient ot the carriage in the revers'e direction. shown, :i etnliormrj' gear rack (3G extends; alongn the irnlne ot the machine adjacent oneY nido, and gear pin-- ions 67, GS, eonxinlljr .mounted with the outer end rolls of the upper tape tables1 5G, S8, mesh with the gear melf (ll and nre rotated thereby during the reeiin'oenion of the Carriage. Eneh of the gear pinions G7, 6B, i1 tin n rotates :t gre-,1r pinion, ne G9, 70, conxinlly mounted with the outer end rolle-s of the lower tape tables 57, 59, respectively, through the medium o'f' an idle ,fren 1 pinion 71, rotatably mounted upon the :Lide frame of the carriage. The gears:` 67, GD, .find (SS, 70, at the opposite ends of the carriage 38 enrry oppositely facingr spring psnvle. ne 72, 73, and them springr prin-*ln eoiinernte, respectively, with rnlehets 74, 75. 'formed upon the ends of the outer end rolls of the upper and lower tape tables 56, 57, and 58, 59. By means ot this: arrangement the npper turns of the tapes of the table;` 56 and 59 are driven to the rigl'it., of; viewed in Fig. 1 of the drnwinge, when the carriage 38 is moved to the left, the tapes of the tables 57 and 58 then renmining stfitionnry,4 ,vhere :is the npper turns of the infr-S et' hii 'tubles 57 and 58 are niored to the left. a@ viewed in Fig. l. when the enirriage 38 if; moved to the right, the tupee of the tables; .56 :1nd 59 then remaining stationary.

In the operation -of the device, n sheet delivered to the press from the feed board be laid upon the tape table 5S when the carriage 38 is'inoved to the letil. as viewed in Figi, und a Sheetdelivererl to the press from the feed board .Q9 will be delivered to the` tape table 56 when the earl nage 38 is moved to therigrht, viewed in the Sonie Way. Vhen the earring@ 3S ie/inoreil to the right, as viewed in Fig. 1,- the sheet which was laid upon the tape table 5S dnring the last sueeeeding movement of the earri'age in the reverse direction, will be passed olf of the inner end of the tape table' 58 on to the tzlble '57, nud on the next, Sueeeeding movement ol` the ein-ringe 3S to the rigz'hl this Sheet will he parsed nti" of the end oi' the lupo lulde 57 en to :l Snitnhle support, ne :it A (Vig. l). iiinilsrrly` during' ezieh mme nient oi.' the rfnrring'e .'-H to the left. :in viewed in Figi'. l.` the theel 'u'llif-h ww: depotiiled upon the tnpe table ."it hiringv the lain! pre-- ceding movement of the enrringe IN (o the right, will be puse-ed olf of the inner end of the tape table INE on to (he tape tnble 5S). :md upon the next nueceeding' movement ol' the carriage 39. (o the righi thil sheet will be penned oil' of' the end of the impe tzible 5f) on to :i suitable ffupiiorl. :is nl, B. Sheets printed ln' the ryliurler i() :ire thus deposited helen' the feed lumi-d 53S), vwhere they muy be eonrenienlli` examined b y :in oper-` :ttor standing` within reneh ol' the ink founl'niu 27, :ind shirts printed by the fr vlinder l] nre deposited :d ii. where thenY may he conveniently examined by an operntor standing' within renrli of the init fountnin 2H. [furthermore the Sheets nre, n'mintnined upon the tape teldeny 5F, Si). und 5S, 57, re1pe ti\'ol y, :i suffit-inni. length ol time to permit the ink to net..

The Sheet deliver)r lneehnnism shown :1nd de =eribed is not claimed herein, for the renson that it in reserved for n Separnte appli cation.

1. ln combination, u pair of oppinsiielyY rotating' o vlindere enel) having' printnng;r :ind inu'n'esision surfaces, the radius of eurrislture of the iinifireesion Snrfeee of each cylinder being Shorter than the radins of m'vatnro of the printing surfzlee of the Same cylinder und the printing` :ind impression surfneee of each Acylinder eoperntil'ig, respectively. with the inilneefsion` :1nd printing surfaces; of the other cylinder at eeeh revolution of the cylinders.

Q. 'In n rotary printing press. in comb-ination, a pair of cylinders each having print ing and irnn'eesion snrfaeee, the prii'itingr surfnetof enoh olvliuder being of greater radius than the impreesion surface ot' the sinne eylin-:lerand pair of intern'iesbing; ouin genre ergmxinlly mounted with the re,-I speetive eylii'u'lers .find turning with then'x, erich o' the enid eatin ,f fenrfj inning eirenlnr portions' the pirieh lin'ef` ei which have rfidii equal to the rndii ot the printing sind iin pression Srr'nees: oi the mrc-Spending e vl inder.

3. ln :i rotary priming prees, in combination. .f pui." ot' like eylinders eriell lnlriinir printinggund inii'iression Snrteieeg, the printing' and iinl'nesf-;ion surfaces of eneh cylinder being` et equal extent but of ditl'erent radius, the printingnurfnee hnvingP the greater radius, and n pair of equal intern'leriliizlg am gears eozxxially mounted with the respective cylinders and turning `Vith them,

. each of the sind cam gears havlng circular pnrtions of equal extent. but of different y ralii, the radii 01c the `said. circular gear pcjrtions being equal7 respectively, t0 the radii of the printing and impression surfaces of the cylinders. i

i1. l n a rotary print-ing press, in combinatinn, al pair of parallel cylinders each having printing and impression Surfaces, the printing Surface of each cylinder bein 0f greater radins than the impression sur ace of the same: cylinder, and the sum ofthe radii the printing surface of each cylinder and Ef the impression surface of the other cylinder being equal t0 the distance between the axes of the cylinders, and means for rotating the cylinders at relatively variable angular velocity whereby the slfirfaee speeds; of the printing and impression surfaces of une Cylinder will alternately be uniform with the surface s @eds of the impression and printingr sur. aces of` the other cylinder, respectively.

WILLIAM L. HAMILTON.

Witnesses:

CHARLES B. GILLSON, E. M. KLA'ICHER. 

